Untitled Flashcards Set

Operating system

Manages all application programs in a computer after being loaded by a boot program.

Data bus

Transfers data between a computer's memory and its CPU.

Instruction register

The part of a CPU's control unit that holds the instruction currently being executed or decoded.

Accumulator

A memory location used to store the intermediate results of arithmetic and logical operations.

Program counter

Keeps track of the memory address of the next instruction to be executed in a program.

Control unit

A subcomponent of CPU that manages computer operations.

Single allocation

The simplest memory management technique where all memory is available to a single application.

Partitioned allocation

Divides primary memory into multiple contiguous memory partitions for specific jobs.

Paged allocation

Divides memory into fixed-size units called page frames; maps pages to frames for memory allocation.

Von Neumann architecture

Consists of main memory, a CPU, and an interconnection between the memory and the CPU.